Hi @Perry Gretton
Did you install the add-in from Microsoft Add-ins store?
If you install a COM add-in, please ensure the add-in is enabled.
- You may go to File > Options > Add-ins > Manage COM Add-ins, click "Go". Tick the check box for this COM add-ins, select OK.
Then I suggest you refer to Ilgar Zarbaliyev's suggestion. - As a supplement, to find this add-in, you may select "All Commands".

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